| Jackie Scott Law Limited | Professional & scientific | 2021 |
| Jackie Scott Limited | Professional & scientific | 2017 |
| James Sheehan Private Practice Limited | Health & social care | 2024 |
| JDI Property (Overseas) Limited | Real estate | 2019 |
| JGG1 Limited | Financial services | 2021 |
| JJ Accountancy Limited | Professional & scientific | 2006 |
| Juliet Lima Romeo Ltd | Health & social care | 2018 |
| Just Develop IT Limited | Administrative & support | 2008 |
| Kalo Health Limited | Information & communication | 2025 |
| Kane Medical Limited | Health & social care | 2020 |
| Kevsound Limited | Other services | 1995 |
| KHD Coaching Ltd | Administrative & support | 2023 |
| Kimura Group Limited | Financial services | 2026 |
| Kinetic Buzz Limited | Information & communication | 2015 |
| Kinn Collective Limited | Wholesale & retail | 2018 |
| Koala (Property) Company Limited | Real estate | 2006 |
| Koolglass Limited | Manufacturing | 2021 |
| Koolshade (U.K.) Limited | Professional & scientific | 1982 |
| Langdown Associates Limited | Administrative & support | 2011 |
| Lipson Developments Ltd | Construction | 2021 |
| Live Tour Promotions Limited | Arts & recreation | 2018 |
| Logical Creative Marketing Limited | Professional & scientific | 2001 |
| Luxmoore Investments Limited | Real estate | 2016 |
| LX1 Limited | Arts & recreation | 2015 |
| Maitland Capital Limited | Professional & scientific | 2020 |
| Manor Court at Aldsworth Limited | Hospitality | 2020 |
| Marine Geology Solutions Limited | Professional & scientific | 2017 |
| Marwali Ltd | Hospitality | 2020 |
| Maximum Air Limited | Construction | 2014 |
| Maximum Air Properties (UK) Limited | Real estate | 2011 |
| Maximum Climate Control Ltd | Construction | 1995 |
| Maximum Holdings (UK) Limited | Financial services | 2011 |
| MBM Perfect Spaces Limited | Administrative & support | 2021 |
| Mental Wellbeing Services UK Limited | Health & social care | 2021 |
| Milnes Management Services Limited | Other services | 2012 |
| Milnes Property Limited | Real estate | 2017 |
| Mitchell Care Ltd | Hospitality | 2023 |
| Moneytree Hydroponics Limited | Wholesale & retail | 2010 |
| NA Curtain Walling Holdings Limited | Professional & scientific | 2006 |
| NA Curtain Walling Limited | Construction | 2002 |
| Netwalking Limited | Professional & scientific | 2022 |
| Nightingale Assets Limited | Financial services | 2024 |
| NJN Holdings Limited | Real estate | 1998 |
| NOTTINV1 Limited | Financial services | 2023 |
| NOW Lead Consulting Limited | Professional & scientific | 2020 |
| Nuge&Co Limited | Professional & scientific | 2021 |
| Oatley Investments Limited | Real estate | 2016 |
| Octane 99 Ltd | Information & communication | 2025 |
| Onyx Asset Finance Limited | Financial services | 2019 |
| Onyx Development Finance Limited | Financial services | 2018 |
| Onyx Money (Overseas) Limited | Financial services | 2019 |
| Onyx Money Limited | Financial services | 2019 |
| Outsource Your Accounts Ltd | Professional & scientific | 2012 |
| Owners of Pinkhurst Lane Limited | Households | 2019 |
| Padelstars Limited | Construction | 2022 |
| PC Protect Antivirus Limited | Information & communication | 2018 |
| Perfect Moment (UK) Limited | Wholesale & retail | 2017 |
| Plan B Hairdressing Limited | Other services | 2026 |
| Portsmouth Steel Co. Limited (the) | Professional & scientific | 1975 |
| Possum Productions Limited | Administrative & support | 2008 |
| Premair Environmental Limited Ltd | Professional & scientific | 2025 |
| Premair Mechanical Ltd | Construction | 2019 |
| Premier A/C Services Limited | Construction | 2007 |
| Protected Antivirus Limited | Information & communication | 2018 |
| PRS Risk Limited | Professional & scientific | 2022 |
| Quintira Limited | Administrative & support | 2024 |
| RCA Properties Ltd | Real estate | 1998 |
| Renada Solutions Ltd | Information & communication | 2022 |
| Revitalise Medical Limited | Other services | 2022 |
| Revive Real Limited | Professional & scientific | 2025 |
| REX Projects Limited | Financial services | 2026 |
| Rico & Rico Limited | Administrative & support | 2018 |
| ROB Lawson Photography Limited | Other services | 2003 |
| Rupert Tubbs Limited | Professional & scientific | 2020 |
| S.T.E.M Limited | Manufacturing | 2026 |
| Saramanda 1 Limited | Other services | 2015 |
| Scafftech Scaffolding (UK) Ltd | Construction | 2020 |
| Scanguard Antivirus Limited | Information & communication | 2018 |
| Scaro Investments Limited | Administrative & support | 2014 |
| Scaro Limited | Professional & scientific | 2021 |
| Second Avenue Portfolio Limited | Administrative & support | 2006 |
| Senses Aesthetics Ltd | Other services | 2020 |
| SG Seraph Properties Limited | Real estate | 2025 |
| Short Legacy Holdings Ltd | Administrative & support | 2023 |
| Signature Properties South Limited | Real estate | 2016 |
| Signature Property 1 Limited | Construction | 2023 |
| Smartwave Electrical Solutions Ltd | Construction | 2021 |
| Social Hire Ltd | Professional & scientific | 2013 |
| Solent Pressure Washing Services Ltd | Construction | 2025 |
| Solent Speech and Language Ltd | Health & social care | 2007 |
| Southern Air Charter Limited | Transport & logistics | 2023 |
| Spread the Word Media Limited | Information & communication | 2015 |
| ST Vincents Estates Limited | Real estate | 2018 |
| ST Vincents Retirement Home Limited | Health & social care | 2018 |
| Stature Energy Limited | Administrative & support | 2023 |
| TAR Productions Limited | Arts & recreation | 2023 |
| TFP Business Services Limited | Extraterritorial | 2002 |
| THE Collection by Signature Limited | Administrative & support | 2026 |
| THE Development Suite Limited | Information & communication | 2017 |
| THE Expansion Collective Ltd | Other services | 2024 |